Circuit/System Testing
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Park lamps OFF, disconnect all of the LED dimming supply circuit lamp components on the circuit.
- Park lamps ON, verify that DTC B2610 00, B2610 01, and DTC B2610 02 does not reset.
- If the DTC resets, test for a short to voltage, short to ground, or an open in the LED dimming supply circuit. If the circuit/connections test normal, replace the BCM, driver door switch, and passenger door switch as applicable.
- Reconnect each component one at a time and test for DTC B2610 00, B2610 01 and DTC B2610 02.
- If the DTC resets, replace that particular component.
- If the DTC does not reset, replace the BCM.